Skip to content

Conversation

ericsnowcurrently
Copy link
Member

@ericsnowcurrently ericsnowcurrently commented Mar 7, 2023

This will keep us from adding new unsupported (i.e. non-const) C global variables, which would break interpreter isolation.

FYI, historically it is very uncommon for new global variables to get added. Furthermore, it is rare for new code to break the c-analyzer. So the check should almost always pass unnoticed.

Note that I've removed test_check_c_globals. A test wasn't a great fit conceptually and was super slow on debug builds. A CI check is a better fit.

(I'm going to sit on this PR for a few days in case there are any concerns with the new CI check. I'll also do a quick double-check with the core team but don't anticipate any real opposition.)

This also resolves gh-100237.

Copy link
Contributor

@erlend-aasland erlend-aasland left a comment

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

LGTM (but patchcheck has white-space complaints)

@ericsnowcurrently
Copy link
Member Author

Yeah, it never likes the tabs in the TSV strings in Tools/c-analyzer/cpython/_parser.py.

Copy link
Member

@CAM-Gerlach CAM-Gerlach left a comment

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

A couple minor comments; I reviewed the check explanation and didn't find any non-trivial copyediting/proofreading issues.

@ericsnowcurrently ericsnowcurrently merged commit 1ff81c0 into python:main Mar 14, 2023
@ericsnowcurrently ericsnowcurrently deleted the enable-globals-ci-check branch March 14, 2023 16:05
carljm added a commit to carljm/cpython that referenced this pull request Mar 14, 2023
* main: (50 commits) pythongh-102674: Remove _specialization_stats from Lib/opcode.py (python#102685) pythongh-102660: Handle m_copy Specially for the sys and builtins Modules (pythongh-102661) pythongh-102354: change python3 to python in docs examples (python#102696) pythongh-81057: Add a CI Check for New Unsupported C Global Variables (pythongh-102506) pythonGH-94851: check unicode consistency of static strings in debug mode (python#102684) pythongh-100315: clarification to `__slots__` docs. (python#102621) pythonGH-100227: cleanup initialization of global interned dict (python#102682) doc: Remove a duplicate 'versionchanged' in library/asyncio-task (pythongh-102677) pythongh-102013: Add PyUnstable_GC_VisitObjects (python#102014) pythonGH-102670: Use sumprod() to simplify, speed up, and improve accuracy of statistics functions (pythonGH-102649) pythongh-102627: Replace address pointing toward malicious web page (python#102630) pythongh-98831: Use DECREF_INPUTS() more (python#102409) pythongh-101659: Avoid Allocation for Shared Exceptions in the _xxsubinterpreters Module (pythongh-102659) pythongh-101524: Fix the ChannelID tp_name (pythongh-102655) pythongh-102069: Fix `__weakref__` descriptor generation for custom dataclasses (python#102075) pythongh-98169 dataclasses.astuple support DefaultDict (python#98170) pythongh-102650: Remove duplicate include directives from multiple source files (python#102651) pythonGH-100987: Don't cache references to the names and consts array in `_PyEval_EvalFrameDefault`. (python#102640) pythongh-87092: refactor assemble() to a number of separate functions, which do not need the compiler struct (python#102562) pythongh-102192: Replace PyErr_Fetch/Restore etc by more efficient alternatives (python#102631) ...
Fidget-Spinner pushed a commit to Fidget-Spinner/cpython that referenced this pull request Mar 27, 2023
…pythongh-102506) This will keep us from adding new unsupported (i.e. non-const) C global variables, which would break interpreter isolation. FYI, historically it is very uncommon for new global variables to get added. Furthermore, it is rare for new code to break the c-analyzer. So the check should almost always pass unnoticed. Note that I've removed test_check_c_globals. A test wasn't a great fit conceptually and was super slow on debug builds. A CI check is a better fit. This also resolves pythongh-100237. python#81057
warsaw pushed a commit to warsaw/cpython that referenced this pull request Apr 11, 2023
…pythongh-102506) This will keep us from adding new unsupported (i.e. non-const) C global variables, which would break interpreter isolation. FYI, historically it is very uncommon for new global variables to get added. Furthermore, it is rare for new code to break the c-analyzer. So the check should almost always pass unnoticed. Note that I've removed test_check_c_globals. A test wasn't a great fit conceptually and was super slow on debug builds. A CI check is a better fit. This also resolves pythongh-100237. python#81057
Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment
5 participants